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Gentoo Linux Security Advisory                           GLSA 202101-25
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Mutt: Denial of service
     Date: January 26, 2021
     Bugs: #765790
       ID: 202101-25

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Synopsis
========

A vulnerability in Mutt could lead to a Denial of Service condition.

Background
==========

Mutt is a small but very powerful text-based mail client.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  mail-client/mutt            < 2.0.4-r1               >= 2.0.4-r1

Description
===========

A memory leak could occur when a crafted email message is received.

Impact
======

An attacker could cause a possible Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Mutt users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=mail-client/mutt-2.0.4-r1"

References
==========

[ 1 ] CVE-2021-3181
      https://nvd.nist.gov/vuln/detail/CVE-2021-3181

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/202101-25

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2021 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5